Question

c语言问题？

假如我输入两组数据为什么只输出一组数据呢？小白疑问
#include<stdio.h>
#include<stdlib.h>

int get(struct stu **head);
void input(struct stu *infor);
void output(struct stu *head);

struct stu
{
char Name[15];
float Maths, English, C, Total;
struct stu *next;
};

int main()
{
struct stu *head = NULL;
int num, i = 1;
printf("请输入人数:");
scanf("%d", &num);
while((i )<=num)
{
get(&head);
}

output(head);
return 0;
}

int get(struct stu **head)
{
struct stu *infor;
struct stu *temp;
infor = (struct stu *)malloc(sizeof(struct stu));
if(infor==NULL)
{
printf("内存分配失败。");
exit(1);
}

input(infor);

if(*head==NULL)
{
*head = infor;
(*head)->next=NULL;
}else
{
temp = (*head)->next;
while(temp!=NULL)
{
temp = temp->next;
}
temp = infor;
temp->next = NULL;

}
return 0;
}

void input(struct stu *infor)
{
printf("请输入学生姓名：");
scanf("%s", infor->Name);
printf("请输入数学成绩：");
scanf("%f", &(infor->Maths));
printf("请输入英语成绩：");
scanf("%f", &(infor->English));
printf("请输入C语言成绩：");
scanf("%f", &(infor->C));
infor->Total = (infor->Maths) (infor->English) (infor->C);
}

void output(struct stu *head)
{
struct stu *a;
a = head;
do
{
printf("%s", a->Name);
printf("%.1f", a->Maths);
printf("%.1f", a->English);
printf("%.1f", a->C);
printf("%.1f", a->Total);
a = a->next;
}while(a!=NULL);
}

Answer 1

if(*head==NULL)
{
*head = infor;
(*head)->next=NULL;
}else
/* {
temp = (*head)->next;
while(temp!=NULL)
{
temp = temp->next;
} //temp初始指向尾结点的next域
temp = infor;// 再局哪将temp指向了infor,就改变了temp的指向：从指向则腊谨尾结点的next域改为指向了infor。所以实际上并没有通过这条语句来改变链表。
temp->next = NULL;

}*/
下面是我做的一种改法
{
temp = *head;
while(temp->孙基next!=NULL)
{
temp = temp->next;
}
temp->next=infor;
temp->next->next = NULL;
}
同是小白一枚，若有错误，实在抱歉。